US7766551B2 - Rotor block - Google Patents

Rotor block Download PDF

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Publication number
US7766551B2
US7766551B2 US10/590,103 US59010305A US7766551B2 US 7766551 B2 US7766551 B2 US 7766551B2 US 59010305 A US59010305 A US 59010305A US 7766551 B2 US7766551 B2 US 7766551B2
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US
United States
Prior art keywords
bearings
rotor
housing
openings
plain
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US10/590,103
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English (en)
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US20070273226A1 (en
Inventor
Gregor Jansen
Thomas Düllmann
Rainer Woyck
Jörg Lindemaier
Winfried Gievers
Hans-Hermann Osthoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konecranes Global Oy
Original Assignee
Demag Cranes and Components GmbH
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Publication date
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Application filed by Demag Cranes and Components GmbH filed Critical Demag Cranes and Components GmbH
Assigned to DEMAG CRANES & COMPONENTS GMBH reassignment DEMAG CRANES & COMPONENTS GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GIEVERS, WINFRIED, OSTHOFF, HANS-HERMANN, LINDEMAIER, JORG, WOYCK, RAINER, DULLMANN, THOMAS, JANSEN, GREGOR
Publication of US20070273226A1 publication Critical patent/US20070273226A1/en
Publication of US7766551B2 publication Critical patent/US7766551B2/en
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Assigned to TEREX MHPS GMBH reassignment TEREX MHPS GMBH MERGER AND CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: DEMAG CRANES & COMPONENTS GMBH, TEREX MHPS GMBH
Assigned to Terex MHPS IP Management GmbH reassignment Terex MHPS IP Management GmbH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TEREX MHPS GMBH
Assigned to TEREX MHPS GMBH reassignment TEREX MHPS GMBH MERGER (SEE DOCUMENT FOR DETAILS). Assignors: Terex MHPS IP Management GmbH
Assigned to DEMAG CRANES & COMPONENTS GMBH reassignment DEMAG CRANES & COMPONENTS GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: TEREX MHPS GMBH
Assigned to KONECRANES GLOBAL CORPORATION reassignment KONECRANES GLOBAL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DEMAG CRANES & COMPONENTS GMBH
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/08—Runners; Runner bearings

Definitions

  • the invention relates generally to a rotor block with a housing.
  • the rotor blocks known from DE 31 34 750 C2 are formed from two halves of a bearing housing, which are welded together or otherwise joined, and have press-fitted pivot bearing seats in which the hub of the rotor is supported.
  • the pivot bearing seats are adjoined by stop shoulders for the bearings and are oriented toward the hub.
  • the rotor extends by its hub beyond the bearings and is in this way supported directly against the housing.
  • the hub moreover, has annular grooves on its outer rings at either side, intended for snap rings lying against the end faces of the bearing, and a mounting hole with an inner thread, designed for an outer thread on a drive shaft.
  • the rotor block has a housing, in which pivot bearing seats for plain and/or anti-friction bearings are provided to accommodate a rotor extending out on at least one side, and the housing can be taken apart in order to take out the rotor from one side by taking off a detachable cover, so that the housing no longer has to be loosened from the supporting framework in order to replace the rotor.
  • many parts have to be loosened and tightened to install and dismount this rotor.
  • a further design of a rotor block is known from DE 195 40 217 C1.
  • This design calls for the use of so-called annular bodies, which serve to accommodate the bearing in the housing walls of the rotor block. After the rotor and its hub are introduced, they are shoved from the outside onto the hub and its bearing and are secured in the housing. With these rotors, similar to those described above, the installing and dismounting involves the loosening and tightening of many parts. In particular, the annular bodies have to be removed and aligned.
  • the holding pieces In the installed condition of the rotor, the holding pieces have disk-like recesses oriented concentrically to the shaft stumps of the rotor.
  • downward pointing slots are arranged in the support plates and the holding plates, whose width is slightly larger than the diameter of the shaft stump.
  • the basic problem being solved by the present invention is to facilitate the mounting and dismounting or replacement of the rotor in a rotor block.
  • Pivot bearing seats are configured to form a segment greater than a semicircle around the plain and/or anti-friction bearings and to leave a section of the segment open on one side in relation to the bearings, thus forming a narrowing. Furthermore, no additional fitting is needed on each side of the bearing, so that higher accuracy of rotor alignment and higher repeating accuracy in rotor replacement are achieved. As a result, fewer skew running forces are produced, and, therefore, there is less wear on the rotor.
  • the openings that are not completely enclosed may have a narrowing that has slightly larger dimensions or diameter than the diameter of the hub of the rotor.
  • the plain and/or anti-friction bearings may also be configured smaller than the openings not completely enclosed and larger than the narrowing.
  • the openings may be free at the side so that the rotor may be taken out from the side after the plain and/or anti-friction bearings have been removed sideways.
  • the side may be the downward pointing side.
  • the openings may have a cross-sectional shape resembling a keyhole.
  • the openings of the rotor block may have a somewhat circular upper region to accommodate the plain and/or anti-friction bearing.
  • the openings may have a lower region forming an angle that is open to the side and joined to the upper region at the narrowing. This configuration allows for securing of the bearing and high stability or absorption of the forces, as well as a secure and simple mounting and fastening of the rotor.
  • the cross section of the somewhat circular upper region of the openings may comprise approximately three quarters of a circle.
  • connection surface may be provided on any side of the housing from which the rotor does not protrude.
  • it may be a top connection surface, arranged at the top side of the housing.
  • FIG. 1 is a perspective exploded view of a rotor block according to an aspect of the present invention.
  • a rotor block 1 includes a box-shaped, single-piece housing 2 .
  • Housing 2 is open at the bottom and includes a top connection surface 3 A at an upper side.
  • Top connection surface 3 A is formed by two raised surfaces lying at the outside, extending for the width of the housing and being separated in the lengthwise direction by a lower-situated region of an upper housing wall 2 A.
  • Housing 2 moreover, has long sides 2 B and end faces 2 C, which likewise have raised surfaces 3 B and 3 C.
  • Surfaces 3 B which surround boreholes to receive connection bolts, serve as bearing surfaces.
  • Surface 3 C is used to fasten guide rollers and buffers.
  • the bottom side is designated as 3 D or 8 .
  • a rotor 6 is provided, which turns about its axis A by hub 7 and extends downward, partially out of housing 2 at side 8 .
  • axis A is pointed horizontally.
  • Hub 7 is mounted at the sides in plain and/or anti-friction bearings, which are installed in housing 2 .
  • Pivot bearing seats 4 are provided in two long sides 2 B of housing 2 , being formed directly in the housing wall by the surfaces of openings 9 .
  • Openings 9 have an upper region 11 , which is circular in cross section, and a lower region 12 , which forms an angle open toward side 8 or bottom side 3 D.
  • openings 9 are not completely surrounded by the housing wall, and they have an approximately keyhole shaped longitudinal section.
  • Between upper region 11 , which is circular in cross section, and the lower region 12 , which forms an angle open toward the bottom 8 there is a transition or narrowing 13 , having a dimension that is slightly greater than the diameter of hub 7 . Hub 7 may thus be introduced from the bottom into openings 9 or their upper regions 11 , which are circular in cross section.
  • plain and/or anti-friction bearings 5 are press-fitted, functioning to support the ends of hub 7 .
  • both the plain and/or anti-friction bearings 5 and regions 11 , into which bearings 5 are press-fitted, are aligned concentrically to the axis of rotation A of rotor 6 . Accordingly, the diameters of plain and/or anti-friction bearings 5 are smaller than the diameter of upper circular regions 11 and larger than the width of narrowing 13 . Thus, they do not “drop” out from the housing.
  • rotor 6 and hub 7 are introduced into housing 2 from the bottom, i.e., from side 8 , while the ends of hub 7 extend into openings 9 and are ultimately introduced into circular regions 11 .
  • Plain and/or anti-friction bearings 5 are then pushed sideways onto hub 7 by inner ring 5 B, and are introduced into openings 9 or upper circular regions 11 by outer ring 5 A, and press-fitted there into pivot bearing seats 4 . Finally, securing rings 10 are placed on the ends of hub 7 , engaging with corresponding grooves 14 provided in the ends of hub 7 .
  • rotor block 1 Due to the configuration of the rotor block 1 , rotor 6 and hub 7 are mounted directly in housing 2 , without requiring the use of annular bodies, which facilitates installation. There are no extra parts, such as shims, on each bearing side. Moreover, the direct mounting allows for higher precision in rotor alignment and also a higher repeating precision for rotor replacement. Thus, there are fewer skew running forces. Accordingly, there is less wear on the rotor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Vehicle Body Suspensions (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US10/590,103 2004-02-19 2005-02-09 Rotor block Expired - Fee Related US7766551B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004008552 2004-02-19
DE102004008552.8 2004-02-19
DE102004008552A DE102004008552B3 (de) 2004-02-19 2004-02-19 Laufradblock
PCT/EP2005/001272 WO2005090224A1 (de) 2004-02-19 2005-02-09 Laufradblock

Publications (2)

Publication Number Publication Date
US20070273226A1 US20070273226A1 (en) 2007-11-29
US7766551B2 true US7766551B2 (en) 2010-08-03

Family

ID=34673239

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/590,103 Expired - Fee Related US7766551B2 (en) 2004-02-19 2005-02-09 Rotor block

Country Status (11)

Country Link
US (1) US7766551B2 (ja)
EP (1) EP1716065B1 (ja)
JP (1) JP4856551B2 (ja)
CN (1) CN100460304C (ja)
AT (1) ATE390382T1 (ja)
CA (1) CA2556397A1 (ja)
DE (2) DE102004008552B3 (ja)
ES (1) ES2304688T3 (ja)
RU (1) RU2378183C2 (ja)
TW (1) TW200528383A (ja)
WO (1) WO2005090224A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998824A (en) * 1988-04-13 1991-03-12 International Integrated Systems, Inc. System of fluid inspection and/or identification
WO2021007640A1 (pt) * 2019-07-17 2021-01-21 Belizario Ruan Araujo Caixa de mancal ajustável

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011002044A1 (de) 2011-04-14 2012-10-18 Demag Cranes & Components Gmbh Anordnung und Verfahren zur Ausrichtung eines Laufradblocks
CN106949226A (zh) * 2017-04-11 2017-07-14 合肥恺文重工机械有限公司 一种drs欧式轮箱
AU2019264544A1 (en) * 2018-11-30 2020-06-18 Ciilock Engineering Pty Ltd A roller assembly and a roller carriage for the same
DE102020129194B4 (de) 2020-11-05 2022-12-15 Konecranes Global Corporation Anordnung und Verfahren zum Ausrichten eines Laufradblocks an einem Fahrwerksträger, insbesondere Kran-Fahrwerksträger
DE102021105522A1 (de) 2021-03-08 2022-09-08 Konecranes Global Corporation Radsystem, insbesondere für einen Kran
DE102021128150A1 (de) 2021-10-28 2023-05-04 Konecranes Global Corporation Radblock, insbesondere für einen Laufkran

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2005949A1 (de) 1970-02-10 1971-08-19 Brunnhuber Maschf Josef Laufradantrieb und Lagerung fur einen Kran
DE2818170A1 (de) 1978-04-26 1979-11-08 Wolfgang Vogel Masch Und Appar Krankopftraeger
DE3134750A1 (de) 1981-09-02 1983-03-17 Mannesmann AG, 4000 Düsseldorf "laufradblock"
DE3724636A1 (de) 1987-07-23 1989-02-02 Mannesmann Ag Laufradlagerung
JPH07233819A (ja) 1993-12-02 1995-09-05 Kci Kone Cranes Internatl Corp ジャーナルボックス取付装置および方法
DE19540217C1 (de) 1995-10-18 1997-01-23 Mannesmann Ag Laufradblock mit einem Gehäuse
DE19540220C1 (de) 1995-10-18 1997-04-10 Mannesmann Ag Laufradblock
US5797661A (en) * 1994-07-14 1998-08-25 Daewoo Electronics Co., Ltd. Wheel of a vacuum cleaner
US6929402B1 (en) * 2002-04-11 2005-08-16 Morgan Construction Company Journal bearing and thrust pad assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86205877U (zh) * 1986-08-05 1987-08-26 第二汽车制造厂 高温环境下使用的悬链吊架
JPH0627438B2 (ja) * 1988-08-31 1994-04-13 コマニー株式会社 移動壁の吊設装置
FI101957B1 (fi) * 1994-07-15 1998-09-30 Kci Kone Cranes Int Oy Nosturi

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2005949A1 (de) 1970-02-10 1971-08-19 Brunnhuber Maschf Josef Laufradantrieb und Lagerung fur einen Kran
DE2818170A1 (de) 1978-04-26 1979-11-08 Wolfgang Vogel Masch Und Appar Krankopftraeger
DE3134750A1 (de) 1981-09-02 1983-03-17 Mannesmann AG, 4000 Düsseldorf "laufradblock"
DE3724636A1 (de) 1987-07-23 1989-02-02 Mannesmann Ag Laufradlagerung
JPH07233819A (ja) 1993-12-02 1995-09-05 Kci Kone Cranes Internatl Corp ジャーナルボックス取付装置および方法
US5608971A (en) 1993-12-02 1997-03-11 Kci Konecranes International Corporation Apparatus and procedure for the mounting of a journal box
US5797661A (en) * 1994-07-14 1998-08-25 Daewoo Electronics Co., Ltd. Wheel of a vacuum cleaner
DE19540217C1 (de) 1995-10-18 1997-01-23 Mannesmann Ag Laufradblock mit einem Gehäuse
DE19540220C1 (de) 1995-10-18 1997-04-10 Mannesmann Ag Laufradblock
US6929402B1 (en) * 2002-04-11 2005-08-16 Morgan Construction Company Journal bearing and thrust pad assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
International Preliminary Report on Patentability, from corresponding PCT Application No. PCT/EP2005/001272.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998824A (en) * 1988-04-13 1991-03-12 International Integrated Systems, Inc. System of fluid inspection and/or identification
WO2021007640A1 (pt) * 2019-07-17 2021-01-21 Belizario Ruan Araujo Caixa de mancal ajustável

Also Published As

Publication number Publication date
DE102004008552B3 (de) 2005-07-14
EP1716065A1 (de) 2006-11-02
RU2378183C2 (ru) 2010-01-10
TW200528383A (en) 2005-09-01
EP1716065B1 (de) 2008-03-26
CN1922095A (zh) 2007-02-28
WO2005090224A1 (de) 2005-09-29
CA2556397A1 (en) 2005-09-29
CN100460304C (zh) 2009-02-11
JP2007523302A (ja) 2007-08-16
DE502005003456D1 (de) 2008-05-08
ES2304688T3 (es) 2008-10-16
US20070273226A1 (en) 2007-11-29
JP4856551B2 (ja) 2012-01-18
ATE390382T1 (de) 2008-04-15
RU2006129095A (ru) 2008-03-27

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